RESUMEN
Iron is an essential element for human life and its nutritional status in the human body is directly linked to human health. More than 1015 atoms of iron per second are necessary for the maintenance of haemoglobin formation. To predict iron bioavailability three approaches are normally employed: (a) faecal recovery; (b) plasma appearance; and (c) erythrocyte incorporation (the most used). Isotope Pattern Deconvolution (IPD) is a mathematical tool that allows the isolation of distinct isotope signatures from mixtures of natural abundance and enriched tracers. In this work we propose a novel strategy to assess erythrocyte iron incorporation, based on the use of an iron stable isotope (57Fe) and the IPD concept. This strategy allows direct calculation of the exogenous concentration of 57Fe incorporated into RBCs after supplementation. In this way, to determine the mass of iron incorporated into erythrocytes, the unique prediction that must be made is the blood volume, estimate to reproduce the natural dilution of the tracer (57Fe) in the blood. This novel bioanalytical approach was applied for the measurements of iron incorporation and further iron absorption studies in humans, using a group of twelve healthy participants, that should be further evaluated for the assessment of other chemical elements that could be of health concerns and directly impact society.
Asunto(s)
Eritrocitos , Hierro , Humanos , Hierro/metabolismo , Isótopos de Hierro/metabolismo , Eritrocitos/metabolismo , Plasma , Disponibilidad BiológicaRESUMEN
Sickle cell anemia (SCA) is a genetic and hemolytic disease globally characterized by social vulnerability. Food consumption has been insufficiently analyzed in SCA. Secondary iron overload is often observed. This leads to unreliable recommendations for dietary iron restriction. We assessed food consumption and iron intake among adults with SCA. Considering the guidelines for healthy eating, foods were grouped according to the NOVA classification. This transversal study included 74.4% of eligible patients who were registered in the reference center for SCA treatment in Rio de Janeiro, Brazil, in 2019. Data on food consumption were collected through 24 h recall. The monthly household income of 82.3% of patients was less than $770. The consumption of fresh or minimally processed foods was directly associated with monthly household income (p < 0.0001; η2 = 0.87). Ultra-processed foods provided more than one-third of the total energy intake (35.2%). The prevalence of inadequate iron intake was about 40% among women, while that of iron intake above the tolerable upper limit was 0.8%. People from lower socioeconomic classes had the lowest iron intake. Strategies to encourage the consumption of fresh or minimally processed foods are needed considering the requirement of an antioxidant diet in SCA. These findings highlight the need for health equity to ensure food security and healthy eating in SCA.
Asunto(s)
Anemia de Células Falciformes , Ingestión de Energía , Adulto , Humanos , Femenino , Brasil/epidemiología , Dieta/efectos adversos , Estado Nutricional , Manipulación de Alimentos , Anemia de Células Falciformes/epidemiología , Comida RápidaRESUMEN
Introdução: Náuseas e vômitos induzidos por quimioterapia (NVIQ) são importantes efeitos colaterais dos tratamentos antineoplásicos. Algumas plantas medicinais vêm sendo estudadas no manejo desses efeitos, como o gengibre (Zingiber officinale). Objetivo: Realizar uma revisão acerca do uso via oral do gengibre no manejo de NVIQ em pacientes com câncer. Método: Revisão integrativa da literatura realizada na base de dados MEDLINE, em setembro de 2022, adotando a combinação das palavras-chave "Zingiber officinale" e "Cancer". Foram também aplicados filtros na seleção para incluir ensaios clínicos aleatórios publicados entre 2012 e 2022. Resultados: Ao todo, foram analisados nove estudos. O gengibre apresenta potencial de reduzir NVIQ em pacientes com câncer, refletindo positivamente na qualidade de vida e na melhora do apetite e da fadiga. Os estudos não observaram efeitos adversos da administração do gengibre. Conclusão: O uso por via oral do gengibre demonstra ser uma estratégia segura para o manejo de NVIQ em pacientes com câncer, na dose de 1 g/dia do gengibre em pó, podendo ser utilizado como terapia complementar juntamente com regimes antieméticos padrões
Introduction: Chemotherapy-induced nausea and vomiting (CINV) are important side effects of antineoplastic treatments. Some medicinal plants have been studied in the management of these effects, such as ginger (Zingiber officinale). Objective: Review the oral use of ginger in the management of CINV in cancer patients. Method: Integrative literature review carried out at the MEDLINE database, in September 2022, utilizing the combination of the keywords "Zingiber officinale" and "Cancer", filters were also applied to include randomized clinical trials published between 2012 and 2022. Results: In all, nine studies were analyzed. Ginger has the potential to reduce CINV in cancer patients, reflecting positively on quality-of-life, improved appetite and fatigue. The studies have not found any adverse effect after administering ginger. Conclusion: The oral use of ginger proves to be an effective strategy for the management of CINV in cancer patients, in the dosage regimen of 1 g/day of powdered ginger, and can be used as a complementary therapy along with standard antiemetic regimens
Introducción: Las náuseas y los vómitos inducidos por la quimioterapia (NVIQ) son efectos secundarios importantes de los tratamientos antineoplásicos. Se han estudiado algunas plantas medicinales en el manejo de estos efectos, como el jengibre (Zingiber officinale). Objetivo: Realizar una revisión integradora de la literatura sobre el uso oral del jengibre en el manejo de las NVIQ en pacientes oncológicos. Método: Revisión integradora de la literatura realizada en la base de datos MEDLINE, en septiembre de 2022, adoptando la combinación de las palabras clave "Zingiber officinale" y "Cancer". También se aplicaron filtros en la selección para incluir ensayos clínicos aleatorizados publicados entre 2012 y 2022. Resultados: En total, se analizaron nueve estudios. El jengibre tiene el potencial de reducir las NVIQ en pacientes con cáncer, lo que se refleja positivamente en la mejora de la calidad de vida, apetito y fatiga. Los estudios no han observado ningún efecto adverso por la administración del jengibre. Conclusión: El uso del jengibre por vía oral demuestra ser una estrategia segura para el manejo de NVIQ en pacientes con cáncer, usando una dosis de 1 g/día de jengibre en polvo, y puede usarse como terapia complementaria junto con los regímenes antieméticos estándar
Asunto(s)
Humanos , Masculino , Femenino , Plantas Medicinales , Zingiber officinale/efectos adversos , Fitoterapia , Neoplasias/tratamiento farmacológicoRESUMEN
Objetivo: Descrever as características clínicas, sociais e nutricionais de crianças com doença falciforme de 5-9 anos. Método: Trata-se de estudo seccional em amostra aleatória de 190 crianças avaliada entre 2015 e 2016, cadastradas em um hospital de referência em hematologia do Rio de Janeiro, Brasil. Resultados: A maioria das crianças estudadas possuía o genótipo Hb SS (65,3%), teve seu diagnóstico na triagem neonatal (91%) e iniciou o acompanhamento médico antes dos seis meses de idade (91,5%). Excesso de peso e baixa estatura foram encontrados em 14,2% e 6,2% das crianças, respectivamente. Em relação às condições sociais da família, a maioria dos pais possuíam companheiros (60,5%), viviam com até meio salário mínimo (55,8%) e as mulheres deixaram seus empregos para acompanhar o tratamento da criança (52,4%). Conclusão: As crianças com doença falciforme foram diagnosticadas precocemente, aproximadamente um sexto delas estavam em excesso de peso e 20% declararam renda de até um quarto de salário mínimo. O fortalecimento da rede de atenção no SUS às pessoas com DF é uma importante medida para mitigar os problemas identificados neste estudo. (AU)
Objective: To describe the clinical, social and nutritional characteristics of children with sickle cell disease aged 5 to 9 years. Method: Cross-sectional study carried out in 2015- 2016 with a random sample of 190 children receiving care at a reference hematology hospital in Rio de Janeiro, Brazil. Results: The majority of the children had the genotype Hb SS (65.3%), were diagnosed with SCD during newborn screening (91%) and began clinical treatment before six months of age (91.5%). Overweight and low stature were found in 4.2% and 6.2% of the children, respectively. With respect to the household socioeconomic conditions, most of the parents had a partner (60.5%), lived with up to half the minimum wage (55.8%), and the women quitted their jobs to take care of their children (52.4%). Conclusion: Children with sickle cell disease were diagnosed early; nearly one sixth of them were overweight; and 20% of the parents had income of up to one fourth of the minimum wage. Strengthening the health care network in SUS for individuals with SCD is of vital importance to mitigate the problems identified in this study. (AU)